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lorasvet [3.4K]
3 years ago
9

Prove that the value of the expression does not depend on a: a−(6a−(5a−8))

Mathematics
1 answer:
djyliett [7]3 years ago
3 0

Step-by-step explanation:

a−(6a−(5a−8))

a-(6a-5a+8)

a-6a+5a-8

6a-6a-8

0-8

=-8

so the answer doesn't depend on a

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Step-by-step explanation:

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Which is a counterexample for the conditional statement shown? If three distinct points lie in a plane, then the points can form
lina2011 [118]
<h2>Answer:</h2>

We take the example of:

Three collinear points in a plane.

Then we may conclude that they will never form a triangle.

<h2>Step-by-step explanation:</h2>

We know that a conditional statement is given by:

If p then q

where p is the hypothesis of the statement and q is the conclusion of the statement.

Counter example for a conditional statement--

A counter example is an example that makes the general statement is false.

i.e. a example which fulfills the condition of the hypothesis but does not satisfy the conclusion of the given statement.

  • Here the statement is:

If three distinct points lie in a plane, then the points can form a triangle.

i.e. Hypothesis is: Three distinct point lie in a plane.

and conclusion is: The points form a triangle.

So we take a example as:

Three collinear points lie in a plane but they will never form a triangle.

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4 years ago
Your neighbor has a square shaped pool with side lengths of 3a5. What is the area of the pool?
velikii [3]

Answer:

15a

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Two angles of a triangle measure 55° and 20°.
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The answer is c because of the fact that if the 2 angles at 55 and 20 that means that you have to add them together and get to 180 for the triangle to be true
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